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| author | Max Chou <max.chou@realtek.com> | 2023-03-21 19:48:26 +0800 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2023-04-23 21:57:00 -0700 |
| commit | 253cf30e8d3d001850a95c4729d668f916b037ab (patch) | |
| tree | 89ee194bcca0e64573881543af6a7c23534df749 /drivers/bluetooth | |
| parent | 069f534247bb6db4f8c2c2ea8e9155abf495c37e (diff) | |
| download | linux-stable-253cf30e8d3d001850a95c4729d668f916b037ab.tar.gz linux-stable-253cf30e8d3d001850a95c4729d668f916b037ab.tar.bz2 linux-stable-253cf30e8d3d001850a95c4729d668f916b037ab.zip | |
Bluetooth: btrtl: check for NULL in btrtl_set_quirks()
The btrtl_set_quirks() has accessed btrtl_dev->ic_info->lmp_subver since
b8e482d02513. However, if installing a Realtek Bluetooth controller
without the driver supported, it will hit the NULL point accessed.
Add a check for NULL to avoid the Kernel Oops.
Signed-off-by: Max Chou <max.chou@realtek.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btrtl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c index 8fa7733812ad..0f256a8abef4 100644 --- a/drivers/bluetooth/btrtl.c +++ b/drivers/bluetooth/btrtl.c @@ -905,6 +905,9 @@ void btrtl_set_quirks(struct hci_dev *hdev, struct btrtl_device_info *btrtl_dev) break; } + if (!btrtl_dev->ic_info) + return; + switch (btrtl_dev->ic_info->lmp_subver) { case RTL_ROM_LMP_8703B: /* 8723CS reports two pages for local ext features, |